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Medium-Range Missile (MRM) 20
Production information
Type Missile
Tech Base Inner Sphere
Year Availability 3058
Technical specifications
Heat 6
Damage 1/missile (20)
Minimum Range 0
Short Range 1-3
Medium Range 4-8
Long Range 9-15
Tons 7
Critical Slots 3
Ammo Per Ton 12
Cost (unloaded) 125,000
Ammo Cost (per ton) 5,000
BV (1.0) 112
BV (2.0) 112


The Medium-Range Missile Launcher was designed by scientists at Luthien Armor Works. MRMs are dead-fire missiles that are fired more like lasers than missiles. In order to pack as many missiles as possible into one salvo, scientists removed guidance systems and made the whole package smaller. Though this was seen as a step backwards in technological development, the inexpensive and deadly MRMs have spread throughout the Draconis Combine and to many mercenary units.

The lack of a guidance system and unique nature of MRMs means that they are incompatible with special munitions and advanced guidance systems, though they can be prepared as a single-shot system. The inherent inaccuracy of MRMs is reflected in game terms with a +1 to hit.

The MRM-20 was designed to be easily swapped in for an LRM-15.


Sian/Ceres Puma[edit]

Manufactured on Manufactured by Typically used in References
Sian Hellespont Industrials [1]
MuckRaker MOD [2]
Brand Planet Company
Shigunga Luthien Luthien Armor Works
Skobel Drotnik[3] Terra Skobel MechWorks


  1. Technical Readout: 3085, p. 92
  2. Technical Readout: Irregulars, p. 50, "MuckRaker MiningMech MOD"
  3. Technical Readout: 3085, p. 94